Una Escalera se encuentra recostada sobre un muro, como se muestra continuación a. Indica el desplazamiento que hay desde la base de la escalera hasta la base del muro B. Estima que altura marca la trayectoria cuando hay un desplazamiento de 3M

If a(0,0,0) and b(2,2,2) are points in coordinate space, how many paths are there from a to b that move from one lattice point to another in the positive x-,y- or z- direction?

Need solving this 2nd limit problem.

Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?